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Class Information
Number: 175/214
Name: Boring or penetrating the earth > With above-ground means for handling drilling fluid or cutting > Fluid head on tool shaft having lateral port and axial passage with seal for means reciprocable in the head
Description: Apparatus comprising a tool shaft having a fluid head secured to the end thereof located above ground said head being provided with an axially extending passage which is intersected by a generally perpendicular passage extending from the axially extending passage to the exterior of the head, and having a seal located in the head which is adapted to cooperate with a means movable through the axial passage, or the perpendicular passage and one end of the axial passage.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7395877 |
Apparatus and method to reduce fluid pressure in a wellbore |
Jul. 8, 2008 |
| 7357198 |
Downhole apparatus |
Apr. 15, 2008 |
| 7334633 |
Stripper rubber adapter |
Feb. 26, 2008 |
| 7306032 |
Fluid collecting device |
Dec. 11, 2007 |
| 7299866 |
Apparatus and method for cleaning out sand from an underbalanced hydrocarbon producing well |
Nov. 27, 2007 |
| 7213660 |
Washpipe seal |
May. 8, 2007 |
| 7174956 |
Stripper rubber adapter |
Feb. 13, 2007 |
| 7111692 |
Apparatus and method to reduce fluid pressure in a wellbore |
Sep. 26, 2006 |
| 7040408 |
Flowhead and method |
May. 9, 2006 |
| 6796390 |
Method and device for moving a tube in a borehole in the ground |
Sep. 28, 2004 |
| 6450262 |
Riser isolation tool |
Sep. 17, 2002 |
| 6325159 |
Offshore drilling system |
Dec. 4, 2001 |
| 6230824 |
Rotating subsea diverter |
May. 15, 2001 |
| 6138774 |
Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment |
Oct. 31, 2000 |
| 6105692 |
Swivel chamber for water actuated wireline drills |
Aug. 22, 2000 |
| 5785131 |
Pressurized formation sample collection |
Jul. 28, 1998 |
| 5101913 |
Method and apparatus for drilling wells |
Apr. 7, 1992 |
| 5092717 |
Device for making a drilled hole with an undercut |
Mar. 3, 1992 |
| 5037250 |
Rotary tool holder |
Aug. 6, 1991 |
| 4949796 |
Drilling head seal assembly |
Aug. 21, 1990 |
| 4889196 |
Diverter apparatus |
Dec. 26, 1989 |
| 4640372 |
Diverter including apparatus for breaking up large pieces of formation carried to the surface by the drilling mud |
Feb. 3, 1987 |
| 4585256 |
Side feed water swivel |
Apr. 29, 1986 |
| 4500094 |
High pressure rotary stripper |
Feb. 19, 1985 |
| 4440243 |
Drill cuttings conveying head with wet cuttings diverter |
Apr. 3, 1984 |
| 4434861 |
Dust conveying and collecting system and method |
Mar. 6, 1984 |
| 4428421 |
Wireline winch mounting system |
Jan. 31, 1984 |
| 4357992 |
Fluid pressurization apparatus and technique |
Nov. 9, 1982 |
| 4312404 |
Rotating blowout preventer |
Jan. 26, 1982 |
| 4295536 |
Pressure seal for pumping instruments through drill rod |
Oct. 20, 1981 |
| 4281724 |
Drilling head |
Aug. 4, 1981 |
| 4208056 |
Rotating blowout preventor with index kelly drive bushing and stripper rubber |
Jun. 17, 1980 |
| 4157186 |
Heavy duty rotating blowout preventor |
Jun. 5, 1979 |
| 4090573 |
Wireline sealing apparatus and method for use with a drill string |
May. 23, 1978 |
| 3985367 |
Wet drilling system |
Oct. 12, 1976 |
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